... Many of the clients in the MySQL source distribution are written in C. If you are looking for examples that demonstrate how to use the C API, take a look at these clients. Most of the other client APIs (all except Java) use the mysqlclient library to communicate with the MySQL server. ... In particular you have to ensure that between a mysql_query() and mysql_store_result() no other thread is using the same connection. ... MYSQL . ... Returns client version information. mysql_get_host_info() . ...